diff --git a/avgno b/avgno
new file mode 100644
index 0000000..fd765c8
--- /dev/null
+++ b/avgno
@@ -0,0 +1,9 @@
+def cal_average(num):
+    sum_num = 0
+    for t in num:
+        sum_num = sum_num + t           
+
+    avg = sum_num / len(num)
+    return avg
+
+print("The average is", cal_average([17,26,3,21,35]))